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charset=UTF-8 Emacs freezes and leaks memory when I eval the following code from a fresh startup ("works" in both ielm and *scratch*) (setq i 1) (loop (setq i (+ i 1)) (print i)) It occupies more and more memory, and can only be stopped by sending a termination signal to the process. Although I discovered this behavior in Debian's version 24.5 on GNU/Linux, I have been able to replicate it in stock version 25. The extent of the memory leak is such that the acronym EMACS ends up expanding to "Eight thousand Megabytes And Constantly Swapping". The following is information from Emacs's built in bug reporting system -------------------------------------------------------------------------------------------------------- In GNU Emacs 24.5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.14.5) of 2016-03-19 on trouble, modified by Debian Windowing system distributor `The X.Org Foundation', version 11.0.11604000 System Description: Debian GNU/Linux 8.7 (jessie) Configured using: `configure --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp --with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wall' CPPFLAGS=-D_FORTIFY_SOURCE=2 LDFLAGS=-Wl,-z,relro' Important settings: value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix Major mode: Outline Minor modes in effect: goto-address-mode: t tooltip-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t buffer-read-only: t line-number-mode: t transient-mark-mode: t view-mode: t Recent messages: is undefined [49 times] byte-code: End of buffer [10 times] is undefined is undefined byte-code: End of buffer is undefined byte-code: End of buffer [2 times] is undefined byte-code: End of buffer is undefined [9 times] Load-path shadows: /usr/share/emacs/site-lisp/golang-mode/go-mode hides /usr/share/emacs/24.5/site-lisp/golang-mode/go-mode /usr/share/emacs/site-lisp/golang-mode/go-mode-load hides /usr/share/emacs/24.5/site-lisp/golang-mode/go-mode-load /usr/share/emacs/24.5/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/debian-startup /usr/share/emacs/site-lisp/rst hides /usr/share/emacs/24.5/lisp/textmodes/rst /usr/share/emacs24/site-lisp/dictionaries-common/flyspell hides /usr/share/emacs/24.5/lisp/textmodes/flyspell /usr/share/emacs24/site-lisp/dictionaries-common/ispell hides /usr/share/emacs/24.5/lisp/textmodes/ispell /usr/share/emacs/24.5/lisp/emacs-lisp/cl-lib hides /usr/share/emacs/24.5/site-lisp/slime/lib/cl-lib /usr/share/emacs/24.5/lisp/emacs-lisp/ert-x hides /usr/share/emacs/24.5/site-lisp/slime/lib/ert-x /usr/share/emacs/24.5/lisp/emacs-lisp/ert hides /usr/share/emacs/24.5/site-lisp/slime/lib/ert Features: (shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util help-fns mail-prsvr mail-utils misearch multi-isearch goto-addr thingatpt noutline outline view debian-el debian-el-loaddefs slime-autoloads cl-macs haskell-mode-autoloads edmacro kmacro cl gv cl-loaddefs cl-lib go-mode-load emacs-goodies-el emacs-goodies-custom emacs-goodies-loaddefs easy-mmode devhelp time-date tooltip electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode prog-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer nadvice loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process dbusbind gfilenotify dynamic-setting system-font-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs) Memory information: ((conses 16 90947 5694) (symbols 48 19180 0) (miscs 40 126 338) (strings 32 13692 4629) (string-bytes 1 425984) (vectors 16 10243) (vector-slots 8 393157 8288) (floats 8 67 474) (intervals 56 967 10) (buffers 960 12) (heap 1024 33451 962)) --001a114790b4f2a9de054d3fba02 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Emacs freezes and leaks memory wh= en I eval the following code from a fresh startup ("works" in bot= h ielm and *scratch*)

(setq i 1)

(loop
=C2=A0(setq i (+ i 1))
=C2=A0(print i))



It occupies more and more memory, and can only be stopped by sending a ter= mination signal to the process.

Although I discovered thi= s behavior in Debian's version 24.5 on GNU/Linux, I have been able to r= eplicate it in stock version 25.

The extent of the memory= leak is such that the acronym EMACS ends up expanding to "Eight thous= and Megabytes And Constantly Swapping".


The foll= owing is information from Emacs's built in bug reporting system

=
-----------------------------------------------------------------------= ---------------------------------



In GNU Emacs 24= .5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.14.5)
=C2=A0of 2016-03-19 on t= rouble, modified by Debian
Windowing system distributor `The X.Org Found= ation', version 11.0.11604000
System Description:=C2=A0=C2=A0=C2=A0 = Debian GNU/Linux 8.7 (jessie)

Configured using:
=C2=A0`configure = --build x86_64-linux-gnu --prefix=3D/usr
=C2=A0--sharedstatedir=3D/var/l= ib --libexecdir=3D/usr/lib
=C2=A0--localstatedir=3D/var/lib --infodir=3D= /usr/share/info
=C2=A0--mandir=3D/usr/share/man --with-pop=3Dyes
=C2= =A0--enable-locallisppath=3D/etc/emacs24:/etc/emacs:/usr/local/share/emacs/= 24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-= lisp:/usr/share/emacs/site-lisp
=C2=A0--build x86_64-linux-gnu --prefix= =3D/usr --sharedstatedir=3D/var/lib
=C2=A0--libexecdir=3D/usr/lib --loca= lstatedir=3D/var/lib
=C2=A0--infodir=3D/usr/share/info --mandir=3D/usr/s= hare/man --with-pop=3Dyes
=C2=A0--enable-locallisppath=3D/etc/emacs24:/e= tc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-= lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp
=C2=A0--= with-x=3Dyes --with-x-toolkit=3Dgtk3 --with-toolkit-scroll-bars
=C2=A0&#= 39;CFLAGS=3D-g -O2 -fstack-protector-strong -Wformat
=C2=A0-Werror=3Dfor= mat-security -Wall' CPPFLAGS=3D-D_FORTIFY_SOURCE=3D2
=C2=A0LDFLAGS= =3D-Wl,-z,relro'

Important settings:
=C2=A0 value of $LANG: e= n_US.UTF-8
=C2=A0 locale-coding-system: utf-8-unix

Major mode: Ou= tline

Minor modes in effect:
=C2=A0 goto-address-mode: t
=C2= =A0 tooltip-mode: t
=C2=A0 electric-indent-mode: t
=C2=A0 mouse-wheel= -mode: t
=C2=A0 tool-bar-mode: t
=C2=A0 menu-bar-mode: t
=C2=A0 fi= le-name-shadow-mode: t
=C2=A0 global-font-lock-mode: t
=C2=A0 font-lo= ck-mode: t
=C2=A0 blink-cursor-mode: t
=C2=A0 auto-composition-mode: = t
=C2=A0 auto-encryption-mode: t
=C2=A0 auto-compression-mode: t
= =C2=A0 buffer-read-only: t
=C2=A0 line-number-mode: t
=C2=A0 transien= t-mark-mode: t
=C2=A0 view-mode: t

Recent messages:
<mouse-= 6> is undefined [49 times]
byte-code: End of buffer [10 times]
<= ;mouse-6> is undefined
<double-mouse-6> is undefined
byte-co= de: End of buffer
<mouse-6> is undefined
byte-code: End of buff= er [2 times]
<mouse-6> is undefined
byte-code: End of buffer<mouse-7> is undefined [9 times]

Load-path shadows:
/usr/s= hare/emacs/site-lisp/golang-mode/go-mode hides /usr/share/emacs/24.5/site-l= isp/golang-mode/go-mode
/usr/share/emacs/site-lisp/golang-mode/go-mode-l= oad hides /usr/share/emacs/24.5/site-lisp/golang-mode/go-mode-load
/usr/= share/emacs/24.5/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/= debian-startup
/usr/share/emacs/site-lisp/rst hides /usr/share/emacs/24.= 5/lisp/textmodes/rst
/usr/share/emacs24/site-lisp/dictionaries-common/fl= yspell hides /usr/share/emacs/24.5/lisp/textmodes/flyspell
/usr/share/em= acs24/site-lisp/dictionaries-common/ispell hides /usr/share/emacs/24.5/lisp= /textmodes/ispell
/usr/share/emacs/24.5/lisp/emacs-lisp/cl-lib hides /us= r/share/emacs/24.5/site-lisp/slime/lib/cl-lib
/usr/share/emacs/24.5/lisp= /emacs-lisp/ert-x hides /usr/share/emacs/24.5/site-lisp/slime/lib/ert-x
= /usr/share/emacs/24.5/lisp/emacs-lisp/ert hides /usr/share/emacs/24.5/site-= lisp/slime/lib/ert

Features:
(shadow sort gnus-util mail-extr ema= csbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodie= s mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail = rfc2047 rfc2045 ietf-drums
mm-util help-fns mail-prsvr mail-utils misear= ch multi-isearch goto-addr
thingatpt noutline outline view debian-el deb= ian-el-loaddefs
slime-autoloads cl-macs haskell-mode-autoloads edmacro k= macro cl gv
cl-loaddefs cl-lib go-mode-load emacs-goodies-el emacs-goodi= es-custom
emacs-goodies-loaddefs easy-mmode devhelp time-date tooltip el= ectric
uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd t= ool-bar
dnd fontset image regexp-opt fringe tabulated-list newcomment li= sp-mode
prog-mode register page menu-bar rfn-eshadow timer select scroll= -bar
mouse jit-lock font-lock syntax facemenu font-core frame cham georg= ian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
= japanese hebrew greek romanian slovak czech european ethiopic indian
cyr= illic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minib= uffer nadvice loaddefs button faces cus-face macroexp files
text-propert= ies overlay sha1 md5 base64 format env code-pages mule
custom widget has= htable-print-readable backquote make-network-process
dbusbind gfilenotif= y dynamic-setting system-font-setting
font-render-setting move-toolbar g= tk x-toolkit x multi-tty emacs)

Memory information:
((conses 16 9= 0947 5694)
=C2=A0(symbols 48 19180 0)
=C2=A0(miscs 40 126 338)
=C2= =A0(strings 32 13692 4629)
=C2=A0(string-bytes 1 425984)
=C2=A0(vecto= rs 16 10243)
=C2=A0(vector-slots 8 393157 8288)
=C2=A0(floats 8 67 47= 4)
=C2=A0(intervals 56 967 10)
=C2=A0(buffers 960 12)
=C2=A0(heap = 1024 33451 962))

--001a114790b4f2a9de054d3fba02--